Amentum, a US defence and engineering firm, announced on January 27, 2026 that it had secured UK nuclear power plants contracts with EDF valued at up to $730 million (about £540 million). The agreements cover engineering and technical services for Britain’s existing nuclear power stations as well as the new Hinkley Point C plant.
The long-term contracts will see more than 1,000 UK-based specialists deployed to support reactor operations, safety, testing and project management across EDF’s fleet. Amentum said it already has around 300 staff working at Hinkley Point C under an existing agreement and will expand its workforce as the plant moves closer to operation. The company currently employs more than 6,000 people in Britain and acts as a lead delivery partner for major projects including Hinkley Point C and Sizewell C.
The agreements cover ten-year performance partnerships for Hinkley Point C and EDF’s operational plants, as well as a five-year reactor management contract which includes reactor operations, life extension and preparation for decommissioning. As part of the agreements, Amentum will offer engineering and technical services. Its earlier 2015 “Lifetime Enterprise Agreement” with EDF already contributed to extending the operational lives of the UK’s advanced gas-cooled reactors.
Company executives described the deals as a strong endorsement of Amentum’s nuclear capabilities. Loren Jones, Amentum’s senior vice-president for energy, said the firm’s “expertise in gigawatt reactor operational support and life extension” makes it “the ideal partner for EDF”. Mark Whitney, president of Amentum’s Energy & Environment business, said the contracts “build on Amentum’s…position as a lead strategic partner to EDF”.
Beyond civilian power generation, the UK nuclear power plants contracts also align with wider national security priorities. Amentum’s UK operations provide safety advice and technology services for the Royal Navy’s nuclear submarines and support the Atomic Weapons Establishment, contributing to the country’s continuous at-sea nuclear deterrent.
Amentum chief executive John Heller said that “the energy resilience and national security of both nations depend on continued leadership and advances in energy and technology”. The contracts are expected to strengthen the UK’s clean energy infrastructure while sustaining the skilled workforce and technical expertise required for long-term energy security.